Who says Darwin had no sense of humor?
From Siress Yorkie and Wired.
SEA MAMMAL BLOWHOLE
animal that spends appreciable time in the ocean should be able to
extract oxygen from water via gills. Enlarging the lungs and moving a
nostril to the back of the head is a poor work-around.
When engorged, this "pseudopenis," which doubles as the birth canal, becomes so hard it can crush babies to death during exit.
order to nurse, the just-born joey, a frail and squishy jellybean, must
clamber up Mom's torso and into her pouch for a nipple.
GIRAFFE BIRTH CANAL
Mama giraffes stand up while giving birth, so baby's entry into the world is a 5-foot drop. Wheeee! Crack.
GOLIATH BIRD-EATING SPIDER EXOSKELETON
giant spider can climb trees to hunt very mobile prey. Yet it has a
shell so fragile it practically explodes when it falls? Well, at least
it can produce silk to make a sail. Oh, wait — it can't!
SHARK FETUS TEETH
few shark species have live births (instead of laying eggs). The Jaws
juniors grow teeth in the womb. The first sibling or two to mature
sometimes eat their siblings in utero. Mmm ... siblings.
can digest a lot — except for cellulose, the primary component of plant
matter. Why don't we have commensal bacteria in our guts to do it?
They're busy helping termites.
hermaphroditic species breed by wrapping their sex organs around each
other. If one of said members gets stuck, the slug simply chews it off.
What. The. Hell?
say you're a four-footed animal. Now let's say you get a wound on your
back, or an itch, or a bug wandering up there. Tough luck, kid. You
probably can't do much about it. Hope there's a low branch around.
unicorn-like protuberance on a male narwhal's head is actually a tooth
that erupts through the front of the jaw and keeps on growing, up to 9
feet. Narwhal: "Doc, I have a toothache." Dentist: "No shit."